Compare a complex sentence to a cat...

Cats have claws at end of paws.

Complex sentence has a pause at the end of a clause.

Little Johnny went with his mother for the first time to deliver lunches to the elderly.

Little Johnny kept starring at a pair of false teeth soaking in a glass.

He said, very softly, "The tooth fairy will never believe this!"

"Did you present the delinquent account to the defendant?" inquired the lawyer of his client.

"I did, sir."

"And what did he say?"

"He told me to go to the hell."

"And what did you do then?"

"Well that's when I came to you."

Little Mary talking to Little Johnny: I found twenty cents on the sidewalk.

Little Johnny: That's mine. I dropped a twenty-cent coin there this morning.

Little Mary: But, what I found was two ten-cent coins!

Little Johnny: That's it. I heard it break when it hit the ground.